› added 1 year ago

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TIL about the Birthday Paradox which says that in a group of 23 people there is a 50% chance that at least two of them will share a birthday. It is considered an example of a veridical paradox which seems wrong at first but is actually true.

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49mb TIL - The National Forest Service tested whether or not bears were attracted to menstruating women by measuring wild bears’ responses to either tampons or to four menstruating women. “Menstrual odors were essentially ignored by [all] black bears.”
x6aZ0 TIL the disco ball was patented over a hundred years ago -- there's even one in a flashback scene in the film Casablanca (which is from 1942)
GYwY5 TIL it is likely that solar eclipses, the way we experience them, are likely unique to earth.
p8BZQ TIL there is a 2,700km long wall running through the Sahara desert. Created in 1987 it is still manned 24/7/365 by thousands of soldiers, supported by radar and surveillance equipment, and it features the longest continuous minefield in the world.
b9vra TIL that the photographer Kevin Carter committed suicide because of depression after he took a picture showcasing a little frail famine-stricken girl collapsed in the foreground with a vulture eyeing her from nearby.